[Lightweight and Portable Fan]-The size of the handheld fan is about 5.7 x 2.76 x 1.78, the weight is 0.2Ib, It is a great portable size and is not heavy to carry round, The lanyard design frees your hands, perfect for traveling, hiking, camping, outdoor activity. [High-Performance Battery]-The mini USB Fan is powered by built-in rechargeable 14500 lithium battery, charging for 2-3 hours, providing 2-4 hours of continuous use time. This hand held fan comes with a USB charging cable, you can charge it by regular socket, computer, car charger or any other device that have a USB port device. [3 Adjustable Speeds]-The handheld fan has 2 adjustable wind speed, you can control fan speed by pressing the power button repeatedly, the highest rotational speed can reach 8200RPM, the mini fan has strong and long-lasting wind, which can keep you cool and comfortable in the hot summer. [Folable Handheld Fan]-This mini portable fan can fold up to 180, it can be used as a handheld fan when outdoor or can be used as a mini desktop fan on the table when in the office. Suitable for summer travel or outdoor sports. [Powerful Wind]- Equipped with 5 pcs fan blades, which is powerful enough to support the blade running at super high speed to produce strong wind, this fan can produce strong air flow and quickly cool you down.